Consolidated Statements of Cash Flows - USD ($) $ in Thousands	12 Months Ended
	Jan. 01, 2016	Jan. 02, 2015	Jan. 03, 2014
Cash flows from operating activities:
Net income	$ 43,599	$ 40,701	$ 38,640
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization of property, equipment and leasehold improvements	5,479	5,404	4,951
Amortization of premiums and accretion of discounts on short-term investments	595	885	340
Deferred rent expense	(65)	(273)	800
Provision for doubtful accounts and contract losses	929	1,718	1,705
Stock-based compensation	12,959	13,079	13,168
Deferred income tax provision	(3,827)	(6,077)	(3,398)
Excess tax benefit for equity incentive plans	(6,396)	(5,100)	(4,267)
Changes in operating assets and liabilities:
Accounts receivable	(3,138)	(11,106)	6,676
Prepaid expenses and other assets	421	(5,320)	(4,596)
Accounts payable and accrued liabilities	7,718	6,142	3,002
Accrued payroll and employee benefits	2,639	6,744	4,665
Deferred revenues	(424)	1,455	106
Net cash provided by operating activities	60,489	48,252	61,792
Cash flows from investing activities:
Capital expenditures	(5,379)	(4,947)	(6,226)
Purchase of short-term investments	(43,946)	(5,260)	(33,422)
Maturity of short-term investments	22,290	11,642	19,190
Sale of short-term investments	0	1,000	1,578
Net cash (used in) provided by investing activities	(27,035)	2,435	(18,880)
Cash flows from financing activities:
Excess tax benefit for equity incentive plans	6,396	5,100	4,267
Payroll taxes for restricted stock units	(7,365)	(6,356)	(6,402)
Repurchase of common stock	(23,314)	(30,921)	(25,519)
Exercise of share-based payment awards	3,014	2,107	1,812
Dividends and dividend equivalent rights	(15,647)	(13,058)	(7,927)
Net cash used in financing activities	(36,916)	(43,128)	(33,769)
Effect of foreign currency exchange rates on cash and cash equivalents	(277)	(1,017)	537
Net (decrease) increase in cash and cash equivalents	(3,739)	6,542	9,680
Cash and cash equivalents at beginning of year	129,490	122,948	113,268
Cash and cash equivalents at end of year	$ 125,751	$ 129,490	$ 122,948